Turns over will not fire

Tiny
JA99
  • MEMBER
  • 2005 DODGE RAM
  • 4.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
Truck was starting and running fine. Then a couple of months ago I was driving on the interstate around 70 miles per hour and it just quit running. So far I've swapped the fuel pump relay with a spare and it started and ran for about 30 minutes. I shut it off and tried to restart it but it was back to not firing. The engine was replaced about 3 years ago, I've had the coil packs replaced twice, and the fuel pump as well since the motor change. I believe the plugs and plug wires were also replaced.
Sunday, September 1st, 2019 AT 6:07 AM

1 Reply

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
Can you hear the fuel pump prime for about 2 seconds after you first turn the key to run, before you turn the key to start?
Is there any check engine or security/theft light remaining on or flashing?
Have you checked for spark?
Have you seen if the engine will start and run for a few seconds after a couple of small shots of starting fluid into the throttle opening?
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Sunday, September 1st, 2019 AT 6:53 AM

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